WO2003030158A3 - Optical data medium containing; in the information layer, a dye as a light-absorbing compound - Google Patents

Optical data medium containing; in the information layer, a dye as a light-absorbing compound Download PDF

Info

Publication number
WO2003030158A3
WO2003030158A3 PCT/EP2002/010900 EP0210900W WO03030158A3 WO 2003030158 A3 WO2003030158 A3 WO 2003030158A3 EP 0210900 W EP0210900 W EP 0210900W WO 03030158 A3 WO03030158 A3 WO 03030158A3
Authority
WO
WIPO (PCT)
Prior art keywords
light
information layer
data medium
dye
medium containing
Prior art date
Application number
PCT/EP2002/010900
Other languages
French (fr)
Other versions
WO2003030158A2 (en
Inventor
Horst Berneth
Friedrich-Karl Bruder
Yuichi Sabi
Masanobu Yamamoto
Wilfried Haese
Karin Hassenrueck
Serguei Kostromine
Peter Landenberger
Thomas Sommermann
Josef-Walter Stawitz
Rainer Hagen
Rafael Oser
Christa-Maria Krueger
Timo Meyer-Friedrichsen
Sakuya Tamada
Original Assignee
Bayer Ag
Sony Corp
Horst Berneth
Friedrich-Karl Bruder
Yuichi Sabi
Masanobu Yamamoto
Wilfried Haese
Karin Hassenrueck
Serguei Kostromine
Peter Landenberger
Thomas Sommermann
Josef-Walter Stawitz
Rainer Hagen
Rafael Oser
Christa-Maria Krueger
Timo Meyer-Friedrichsen
Sakuya Tamada
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bayer Ag, Sony Corp, Horst Berneth, Friedrich-Karl Bruder, Yuichi Sabi, Masanobu Yamamoto, Wilfried Haese, Karin Hassenrueck, Serguei Kostromine, Peter Landenberger, Thomas Sommermann, Josef-Walter Stawitz, Rainer Hagen, Rafael Oser, Christa-Maria Krueger, Timo Meyer-Friedrichsen, Sakuya Tamada filed Critical Bayer Ag
Priority to US10/491,755 priority Critical patent/US20040257973A1/en
Priority to JP2003533274A priority patent/JP2005505092A/en
Priority to EP02792715A priority patent/EP1435094A2/en
Publication of WO2003030158A2 publication Critical patent/WO2003030158A2/en
Publication of WO2003030158A3 publication Critical patent/WO2003030158A3/en

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/26—Apparatus or processes specially adapted for the manufacture of record carriers
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B44/00—Azo dyes containing onium groups
    • C09B44/10—Azo dyes containing onium groups containing cyclammonium groups attached to an azo group by a carbon atom of the ring system
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B47/00—Porphines; Azaporphines
    • C09B47/04—Phthalocyanines abbreviation: Pc
    • C09B47/08—Preparation from other phthalocyanine compounds, e.g. cobaltphthalocyanineamine complex
    • C09B47/085—Preparation from other phthalocyanine compounds, e.g. cobaltphthalocyanineamine complex substituting the central metal atom
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B67/00—Influencing the physical, e.g. the dyeing or printing properties of dyestuffs without chemical reactions, e.g. by treating with solvents grinding or grinding assistants, coating of pigments or dyes; Process features in the making of dyestuff preparations; Dyestuff preparations of a special physical nature, e.g. tablets, films
    • C09B67/0097—Dye preparations of special physical nature; Tablets, films, extrusion, microcapsules, sheets, pads, bags with dyes
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
    • G11B7/0045—Recording
    • G11B7/00455—Recording involving reflectivity, absorption or colour changes
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/007—Arrangement of the information on the record carrier, e.g. form of tracks, actual track shape, e.g. wobbled, or cross-section, e.g. v-shaped; Sequential information structures, e.g. sectoring or header formats within a track
    • G11B7/00718—Groove and land recording, i.e. user data recorded both in the grooves and on the lands
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/242—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers
    • G11B7/244—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only
    • G11B7/246—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only containing dyes
    • G11B7/247—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only containing dyes methine or polymethine dyes
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/242—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers
    • G11B7/244—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only
    • G11B7/246—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only containing dyes
    • G11B7/248—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only containing dyes porphines; azaporphines, e.g. phthalocyanines
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/242—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers
    • G11B7/244—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only
    • G11B7/249—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only containing organometallic compounds
    • G11B7/2492—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only containing organometallic compounds neutral compounds
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/252—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers
    • G11B7/257—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of layers having properties involved in recording or reproduction, e.g. optical interference layers or sensitising layers or dielectric layers, which are protecting the recording layers
    • G11B2007/25705—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of layers having properties involved in recording or reproduction, e.g. optical interference layers or sensitising layers or dielectric layers, which are protecting the recording layers consisting essentially of inorganic materials
    • G11B2007/2571—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of layers having properties involved in recording or reproduction, e.g. optical interference layers or sensitising layers or dielectric layers, which are protecting the recording layers consisting essentially of inorganic materials containing group 14 elements except carbon (Si, Ge, Sn, Pb)
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/252—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers
    • G11B7/257—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of layers having properties involved in recording or reproduction, e.g. optical interference layers or sensitising layers or dielectric layers, which are protecting the recording layers
    • G11B2007/25705—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of layers having properties involved in recording or reproduction, e.g. optical interference layers or sensitising layers or dielectric layers, which are protecting the recording layers consisting essentially of inorganic materials
    • G11B2007/25713—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of layers having properties involved in recording or reproduction, e.g. optical interference layers or sensitising layers or dielectric layers, which are protecting the recording layers consisting essentially of inorganic materials containing nitrogen
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/007—Arrangement of the information on the record carrier, e.g. form of tracks, actual track shape, e.g. wobbled, or cross-section, e.g. v-shaped; Sequential information structures, e.g. sectoring or header formats within a track
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/242—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers
    • G11B7/244—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only
    • G11B7/246—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only containing dyes
    • G11B7/247—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only containing dyes methine or polymethine dyes
    • G11B7/2475—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only containing dyes methine or polymethine dyes merocyanine
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/252—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers
    • G11B7/254—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of protective topcoat layers
    • G11B7/2542—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of protective topcoat layers consisting essentially of organic resins

Abstract

Optical data medium containing, in the information layer, a dye as a light-absorbing compoundA b s t r a c tOptical data medium containing a preferably transparent substrate which is optionally already coated with one or more barrier layers and on the surface of which an information layer which can be recorded on using light, optionally one or more barrier layers, and a cover layer containing a radiation-cured resin, have been applied, which data medium can be recorded on and read using focused blue light through the cover layer on the information layer, preferably laser light with the wavelength between 360 nm and 460 nm, the information layer containing a light-absorbing characterized in that at least one dye is used as the light-absorbing compound wherein the cover layer does have a total thickness of 10 µm to 177 (m and the numerical aperture NA of the focusing objective lens setup is greater or equal 0.8.
PCT/EP2002/010900 2001-10-04 2002-09-27 Optical data medium containing; in the information layer, a dye as a light-absorbing compound WO2003030158A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US10/491,755 US20040257973A1 (en) 2001-10-04 2002-09-27 Optical data medium containing; in the information layer, a dye as a light-absorbing compound
JP2003533274A JP2005505092A (en) 2001-10-04 2002-09-27 Optical data medium containing dye as light absorbing compound in information layer
EP02792715A EP1435094A2 (en) 2001-10-04 2002-09-27 Optical data medium containing; in the information layer, a dye as a light-absorbing compound

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
EP01123810 2001-10-04
EP01123810.2 2001-10-04
EP01130527 2001-12-21
EP01130527.3 2001-12-21
EP02005505.9 2002-03-11
EP02005505 2002-03-11

Publications (2)

Publication Number Publication Date
WO2003030158A2 WO2003030158A2 (en) 2003-04-10
WO2003030158A3 true WO2003030158A3 (en) 2003-08-28

Family

ID=27224239

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2002/010900 WO2003030158A2 (en) 2001-10-04 2002-09-27 Optical data medium containing; in the information layer, a dye as a light-absorbing compound

Country Status (5)

Country Link
US (1) US20040257973A1 (en)
EP (1) EP1435094A2 (en)
JP (1) JP2005505092A (en)
TW (1) TWI252479B (en)
WO (1) WO2003030158A2 (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1377975A2 (en) * 2001-03-28 2004-01-07 Bayer Chemicals AG Optical data medium containing, in the information layer, a dye as a lightabsorbing compound and having a protective covering layer of predetermined thickness
AU2003226651A1 (en) * 2002-03-19 2003-09-29 Bayer Chemicals Ag Squarylium dyes as a light-absorbing compound in the information layer of optical data carriers
JP3902523B2 (en) * 2002-08-05 2007-04-11 富士フイルム株式会社 Optical information recording medium and information recording method
US20080130474A1 (en) * 2003-06-27 2008-06-05 Beat Schmidhalter Optical Recording Materials Having High Stroage Density
DE102004025314A1 (en) * 2004-05-19 2005-12-29 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Method for producing an optical storage medium and optical storage medium
AU2005249031A1 (en) * 2004-06-03 2005-12-15 Clariant Finance (Bvi) Limited Use of squaric acid dyes in optical layers for optical data recording
JPWO2006043526A1 (en) * 2004-10-19 2008-08-07 富士フイルム株式会社 Optical information medium
GB2426978A (en) * 2005-06-08 2006-12-13 Yen Cheng Tsai Novel Phthalocyanine Derivatives, Synthetic Process thereof and their application in optical recording media
DE102005028145A1 (en) * 2005-06-17 2006-12-28 Bayer Materialscience Ag Optical data storage, its manufacture and use
JP2009535756A (en) * 2006-04-28 2009-10-01 ベリフィケイション テクノロジーズ インコーポレーテッド Preparations useful for making anti-sampling / copy-proof digital recording media
EP2993197A1 (en) * 2006-11-29 2016-03-09 Sun Chemical Corporation Phthalocyanine colorants and their use as fluorescent security taggants
JP5159128B2 (en) * 2007-03-16 2013-03-06 株式会社Ａｄｅｋａ Merocyanine compound, optical filter and optical recording material using the compound
DE102009009263A1 (en) * 2009-02-17 2010-08-19 Giesecke & Devrient Gmbh A method of making a window-containing final layer for a portable data carrier and final layer
EP3470466A1 (en) * 2017-10-13 2019-04-17 LANXESS Deutschland GmbH New methine dyes

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5820962A (en) * 1995-12-25 1998-10-13 Toyo Ink Manufacturing Co., Ltd. Optical recording material and optical recording medium
EP0889465A2 (en) * 1997-07-03 1999-01-07 Sumitomo Chemical Company, Limited A photo-curing resin composition for DVD
DE19927714A1 (en) * 1998-06-18 1999-12-30 Lg Electronics Inc Recording medium for optical recording/playback of information
EP0971344A1 (en) * 1998-07-09 2000-01-12 Sony Corporation Optical recording medium
WO2000009522A1 (en) * 1998-08-11 2000-02-24 Ciba Specialty Chemicals Holding Inc. Metallocenyl-phthalocyanines
EP1083555A1 (en) * 1999-09-08 2001-03-14 Fuji Photo Film Co., Ltd. Optical information recording medium
US6246656B1 (en) * 1997-04-25 2001-06-12 Sony Corporation Reduced thickness of a light transmissive layer for a high density optical disc
EP1143431A2 (en) * 2000-03-27 2001-10-10 Sony Corporation Optical recording medium

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5855979A (en) * 1996-08-08 1999-01-05 Mitsui Chemicals, Inc. Optical recording medium

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5820962A (en) * 1995-12-25 1998-10-13 Toyo Ink Manufacturing Co., Ltd. Optical recording material and optical recording medium
US6246656B1 (en) * 1997-04-25 2001-06-12 Sony Corporation Reduced thickness of a light transmissive layer for a high density optical disc
EP0889465A2 (en) * 1997-07-03 1999-01-07 Sumitomo Chemical Company, Limited A photo-curing resin composition for DVD
DE19927714A1 (en) * 1998-06-18 1999-12-30 Lg Electronics Inc Recording medium for optical recording/playback of information
EP0971344A1 (en) * 1998-07-09 2000-01-12 Sony Corporation Optical recording medium
WO2000009522A1 (en) * 1998-08-11 2000-02-24 Ciba Specialty Chemicals Holding Inc. Metallocenyl-phthalocyanines
EP1083555A1 (en) * 1999-09-08 2001-03-14 Fuji Photo Film Co., Ltd. Optical information recording medium
EP1143431A2 (en) * 2000-03-27 2001-10-10 Sony Corporation Optical recording medium

Also Published As

Publication number Publication date
EP1435094A2 (en) 2004-07-07
US20040257973A1 (en) 2004-12-23
WO2003030158A2 (en) 2003-04-10
JP2005505092A (en) 2005-02-17
TWI252479B (en) 2006-04-01

Similar Documents

Publication Publication Date Title
WO2002080150A8 (en) Optical data medium containing, in the information layer, a dye as a lightabsorbing compound and having a protective covering layer of predetermined thickness
WO2003030158A3 (en) Optical data medium containing; in the information layer, a dye as a light-absorbing compound
TW200506919A (en) Limited play optical media device with barrier layers
CA2120791A1 (en) Optical Information Medium and Method for Fabricating Same
EP0797194A3 (en) Double-layered information recording medium having information recording layers
CA2335844A1 (en) Optical disk and method of manufacture thereof
EP1253586A3 (en) Optical information recording medium
WO2002080161A3 (en) Optical data carrier that contains a merocyanine dye as the light-absorbing compound in the information layer
HK1050954A1 (en) Information recording and reproducing apparatus and method
JP2004509785A5 (en)
CY1107587T1 (en) IN TWO PILLARS OF STORAGE OF OPTICAL DATA AND USE OF A COMPLETE MEDIA
EP1496509A3 (en) Optical recording medium and production thereof
TW200501106A (en) Optical recording medium and record reproduction method and manufacturing method thereof
JP2004534344A5 (en)
JP2005505092A5 (en)
AU6213101A (en) Use of light-absorbing compounds in the information layer of optical data carriers, and optical data carriers
KR970002965A (en) Single-sided read 2-layer optical disc and playhead
WO2003025923A1 (en) Optical information recording medium and recording method using it
WO2003069604A1 (en) Method for recording information on optical recording medium, information recorder, and optical recording medium
JP2003242644A5 (en)
JPH0570213B2 (en)
KR19990045450A (en) Optical recording or reproducing method of information and optical recording or reproducing apparatus
WO2003069606A1 (en) Method for recording information on optical recording medium, information recorder, and optical recording medium
JP2004259369A (en) Multilayered recording medium and multilayered recording system
TWI256634B (en) An optical data storage medium containing a diaza hemicyanine dye as the light-absorbing compound in the information layer

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A2

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BY BZ CA CH CN CO CR CU CZ DE DM DZ EC EE ES FI GB GD GE GH HR HU ID IL IN IS JP KE KG KP KR LC LK LR LS LT LU LV MA MD MG MN MW MX MZ NO NZ OM PH PL PT RU SD SE SG SI SK SL TJ TM TN TR TZ UA UG US UZ VC VN YU ZA ZM

AL Designated countries for regional patents

Kind code of ref document: A2

Designated state(s): GH GM KE LS MW MZ SD SL SZ UG ZM ZW AM AZ BY KG KZ RU TJ TM AT BE BG CH CY CZ DK EE ES FI FR GB GR IE IT LU MC PT SE SK TR BF BJ CF CG CI GA GN GQ GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
WWE Wipo information: entry into national phase

Ref document number: 2002792715

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 784/DELNP/2004

Country of ref document: IN

WWE Wipo information: entry into national phase

Ref document number: 2003533274

Country of ref document: JP

WWE Wipo information: entry into national phase

Ref document number: 20028236033

Country of ref document: CN

WWP Wipo information: published in national office

Ref document number: 2002792715

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 10491755

Country of ref document: US

WWW Wipo information: withdrawn in national office

Ref document number: 2002792715

Country of ref document: EP